baber/WOPTO huggingface dataset:
Patent GB-113017-A (GB)
Title: Improvements in or relating to Apparatus for the Catalytic Preparation of Sulphuric Anhydride.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: C01B17/80
Filed: 1917-03-01
Abstract: 113,017. Jackson, W. J. Mellersh-, (Bombrini Parodi-Delfino). March 1, 1917. Catalytic apparatus; sulphur trioxide, catalytic production of.-In apparatus for the catalytic production of sulphur trioxide, the contact chamber, which may be divided into zones, is wholly or partly surrounded by the gas leaving the contact chamber, the temperature of this gas being suitably regulated. In the apparatus described, the contact chamber comprises zones A<1>, A<2>, A<3>, the last two being surrounded by jackets c, d The reaction gases enter at f and pass through the part g, tubes h, and a jacket i, then through the contact material and through openings b into the jackets c, b. By regulating the exit valves c, l, m, the heat exchange is controlled.
Patent GB-511923-A (GB)
Title: Gas detecting apparatus with thermometrical indicator tube
IPC: G01N25/46
Filed: 1939-01-30
Abstract: 511,923. Gas detectors; thermometers. BERGER, H. Jan. 30, 1939, No. 3093. [Class 1(i)] [Also in Group XX] An inflammable-gas detector comprises a gas thermometer constituted by a U-tube 2, 4, 6 containing an indicating liquid and a catalyst chamber 13 surrounding the arm 6, with means 18 for forcing the gas to be tested through it. The arm 6 has a bulb 5 just below the catalyst chamber, and the arm 2 has a pressure compensating-vessel 8 at its upper end. The parts 6, 8 are connected by tubes including a cock or clip 12 which can be opened to restore a zero reading. The catalyst comprises a tube 14 coated with precious metals surrounded by palladium and platinum on asbestos or quartz wool 15 and further Àby a granular catalyst 16 for destroying carbon monoxide.
Patent GB-1366134-A (GB)
Title: Electric circuit for supplying alternating current to a load
IPC: H01F38/14
Filed: 1972-01-25
Abstract: 1366134 Transformers VICTOR PRODUCTS (WALLSEND) Ltd 25 Jan 1972 [25 Jan 1971] 3095/71 Heading HIT [Also in Division H2] A transformer 2 comprises a primary winding 5 mounted on a core portion 3 and a secondary winding 7 mounted on a core portion 4. The core portions are mounted in respective housings 6, 8 held together by clamps 10. A load is connected to the secondary winding via a cable 9 and to enable an operation to be carried out in safety on the load, the two portions of the transformer are separable. In Fig. 2, the primary winding 13 is contained within a cylindrical core 12 and the secondary winding 15 is mounted on a core 14. On removal of the secondary winding, a magnetic plug 17, which may be spring biased into position, is inserted in the core 12 to increase the impedance of the primary circuit. The core 12 may comprise two spaced apart U-shaped members and the core 14 may be an I-shaped member, all of the members being laminated.
Patent GB-1508081-A (GB)
Title: Adhesive for gluing metals to other materials
IPC: C08G18/10
Filed: 1976-01-27
Abstract: The addition of a blocked isocyanate prepolymer to an adhesive based on polyvinylformal and phenol-formaldehyde precondensate improves the peel strength at low temperatures of adhesive joints produced therewith. To this end, a prepolymer is selected whose blocked isocyanate groups are liberated at the bonding temperature for reaction with the phenol-formaldehyde precondensate. The improved adhesive can be used, in particular, for the production of metal skis in which layers of metal, wood and plastic are bonded.
Patent GB-1073496-A (GB)
Title: Testing means for use with performating apparatus
Inventor: MASON BRIAN STANELY
IPC: G06K5/02
Filed: 1966-01-24
Abstract: 1,073,496. Selective signalling. CREED & CO. Ltd. Jan. 24, 1966, No. 3129/66. Heading G4H. In testing apparatus for a paper tape punching machine, an armature is attached to each punch and co-operates with a respective static magnetic element carrying two series-connected coils, the arrangement being such that movement of the punch and armature breaks the magnetic circuit through one coil and completes that through the other, thereby producing a transient signal at the junction of the two coils. The outputs from the coil junctions may be compared with the inputs to the punching machine.
Patent GB-1096593-A (GB)
Title: Biological water purifying apparatus and method
IPC: C02F3/32
Filed: 1965-01-25
Abstract: Polluted water in natural and artificial environments is purified by water cultures of higher aquatic plants which are suspended in the water by threads, nets, boxes or like means. The plants are arranged to minimize contact with sludge and the holding means are arranged so that there is a flow of water to prevent sludge building up at the bottom and covering the roots.
Patent GB-493255-A (GB)
Title: Improvements in or relating to metal air propellers
IPC: B64C11/24
Filed: 1938-02-01
Abstract: 493,255. Screw propellers. DORNIER - WERKE GES., (formerly DORNIERMETALLBAUTEN GES.), and DORNIER, C. Feb. 1, 1938, No. 3142. Convention date, March 20,1937. [Class 114] The blades of a metal screw propeller are formed with a metal skeleton 1, having a central longitudinal rib 2, side ribs 3, 4 conforming to the outside shape of the blade and meeting the central rib 2 at the top, whilst there are intermediate inclined ribs 5 at an angle alpha to the rib 2 forming spaces 6. The skeleton so formed is covered with sheets on the outer surface. The area of the metal skeleton is less than the area of the spaces between the parts.
Patent GB-568530-A (GB)
Title: Improved operating gear for adjustable propeller type blades in hydraulic turbines and pumps
IPC: F03B3/14
Filed: 1941-03-07
Abstract: 568,530. Hydraulic turbines. ENGLISH ELECTRIC CO., Ltd., and SEEWER, P. W. March 7, 1941, No. 3156. [Class 110 (iii)] In a vertical hydraulicturbine or pump - rotor having swivelling blades 1 Fig. 1, a hydraulic servomotor 10 arranged below the bladebearings transmits movement to cranks 1b which are rigid with the bladespindles la and are arranged outside the servomotor, the direction of transmi s s i o n being at a considerable angle to the axis of the turbine. The construction causes the servomotor to operate the cranks with a high leverage and permits access to the servomotor and cranks on removal of a hood 11. In the preferred construction, each blade 1 has an integral spindle la and crank 1b, the spindles being mounted in inner and outer bearings in a split hub 2a. The cranks carry pivoted blocks 5 engaging inclined grooves 6a in a prismatic sleeve 6 which is guided vertically by projections 7b, and guide-channels 11a in the hood 11. The servomotor-cylinder 10 is secured to the hub 2a and contains a piston 9 which is connected by a rod 8 and plate 7 to the member 6. Oil under pressure is supplied to the spaces above and below the piston by means of pipes 15, 16 secured to the cylinder 10 and the rod 8 respectively. Oil is supplied to the cranks &c. through the space between the pipe 15 and the turbine-shaft 17, In a modification, Fig. 6 (not shown), the piston 9 is stationary, and the vertically movable sleeve 6 serves also as a cylinder. Specification 568,531 is referred to.
Patent GB-705369-A (GB)
Title: Improvements in or relating to animal foodstuffs and the preparation thereof
IPC: A23K1/00
Filed: 1950-02-07
Abstract: Protein-containing products are made by subjecting vegetable matter, e.g. greenstuff, fruit, tree leaves and root crops, meat, poultry, or fish to mechanical treatment which involves sufficient pressure for breakdown of the cellular structure and liberation of juice, but which does not result in cutting or grinding of the tissues or fibres, simultaneously separating the liquor formed, washing the residue, and separating a protein-rich fraction from the liquor by flocculation.  The flocs may be dried.  Examples are concerned with squeezing juice from freshly-cut lucerne, washing the residue, adding the wash liquor to the juice, heating this liquid to 165 DEG F., and separating the flocs so obtained, and with squeezing liquor from filleted cod previously washed in salty water, washing the residue in the liquor, heating the liquor to 180 DEG F., and allowing the flocs so formed to settle.ALSO:Protein-containing animal foods or food supplements are made by subjecting vegetable matter, e.g. green stuff, fruit, tree leaves and root crops, meat, poultry or fish to mechanical treatment which involves sufficient pressure for breakdown of the cellular structure and liberation of juice, but which does not result in cutting or grinding of the tissues or fibres, simultaneously separating the liquor formed, washing the residue, and separating a protein-rich fraction from the liquor by flocculation and precipitation.  The liquid from which the flocs have been removed may be employed for washing the residue of a pressed fresh charge. Examples are concerned with squeezing juice from freshly-cut lucerne, washing the residue, adding the wash liquor to the juice, heating this liquid to 165 DEG  F., and separating the flocs so obtained and with squeezing liquor from filleted cod previously washed in salty water, washing the residue in the liquor, heating the liquor to 180 DEG  F., and allowing the flocs so formed to settle.
Patent GB-239772-A (GB)
Title: Improvements in cigarette holders
IPC: A24F13/14
Filed: 1925-02-05
Abstract: 239,772. Kimball, F. L. Feb. 5, 1925. Cigarette-holders.-A hollow cigarette receiving member 5 is screwed into the end of the holder 1 and an ash-retaining shield 9 having lateral perforations 10 fits frictionally upon the conical end 3 thereof. The member 5 is formed with resilient fingers 6 having protuberances 7 engaged by the walls of the shield 9 whereby the fingers are caused to grip the cigarette. A reticulated screen 13 is held in place at the end of the shield 9 by a screw-threaded ring 14. The shield 13 is formed near its free end with an internal annular rib adapted to support the cigarette.
Patent GB-412880-A (GB)
Title: Improvements in or relating to focal plane shutters for photographic cameras
IPC: G03B9/34
Filed: 1934-01-31
Abstract: 412,880. Photographic cameras. LEITZ GES., E., Optical Works, Wetzlar, Germany. Jan. 31, 1934, No. 3242. Convention date, Feb. 18, 1933. [Class 98 (i).] Shutters, roller-blind.-In a shutter where the slot is formed, after the shutter release, by a second blind following a first blind across the focal plane of the camera objective, the second blind is released for the longer time settings after a time interval determined by an escapement mechanism, which is only brought into action just before the first blind completes its movement, the driving force for the escapement being derived from the driving spring for the second blind. The driving bands for the first blind are wound on reels A<1>, A<2>, Fig. 6, rigid with spindle A, and the second blind is wound on a roller B freely rotatable on spindle A, driving springs tending to unwind the blinds from the reels and roller. A pin B <1> connects roller B to a member B<2> passing through the camera wall C. Pin B<1> passes through an arcuate slot A<3> in reel A<1> of sufficient length to allow the required relative movement of A and B. Lugs B<3>, B<4> on part B<2> coact respectively with a latch D, Fig. 1, and with an arm G<3> connected to the escapement K. A stop C<2> on the camera wall C<1> arrests a pin A<4> on reel A<2> when the first blind is fully unwound. A disc A<6> rigid with spindle A has holes to receive a pin E<1> on a setting knob E marked with the shorter time settings. To set, knob E is withdrawn and pin E placed in the appropriate hole so that the desired timing E<3> reads against a mark on casing C. Knob E carries a pin E<4> which depresses catch D to release the parts B<3>, B after spindle A and parts A<6>, E, E<4> have rotated through an angle determined by the setting of E. A spindle G is moved axially downwards, Fig. 5, just before the first blind is fully unwound, by a spring blade F, a projection F<1> of which is depressed by a cam A<7> on spindle A. The other end of spindle G passes through an arcuate slot C<3> in wall C and carries a pin G<1> pivoting in the free end of a crank H, itself pivoted at H<1>, the centre of arc C<3>. A spring H<2> tends to raise pin G<1>, Fig. 1, and to move rod G longitudinally against blade F. The rod is held down in slot C<3> by a cam J<1> on setting knob J for the longer time settings. Escapement K, Figs. 1 and 5, is connected by pin K<1> to an arm G<4> mounted on a part G<2> rigid with rod G. Arm G<3> on rod G coacts with lug B<4> on member B'. The escapement is thus driven by the driving spring of the second blind on roller B. For the position of Fig. 1, when the first blind is released, spindle A near the end of its rotation releases latch D and parts B3, B<2>, B ; lug B<4> meets arm G<3> and the escapement delays the rotation of the second blind until lug B<4> wipes free of arm G<3>. For the shorter exposures, rod G is raised to the top of slot C<3> so that arm G<3> is clear of lug B<4> and the escapement does not function.
Patent GB-255744-A (GB)
Title: Improvements in or relating to reclining arm-chairs
IPC: A47C4/40
Filed: 1926-02-04
Abstract: 255,744. Astruc, J. G. V. Feb. 4, 1926. Rocking seats; adjustments ; seating- surfaces, attaching ; canopies.-In a rocking chair of the kind having a stationary frame 1 with arms 2, and a jointed swinging frame 9, 10 carrying the fabric seating 17, a cross-bar 18 is provided between the pivots 3<a> and 15 so that the fabric 17 frictionally engages the cross-bar and produces a braking effect when the seat is rocked. The fabric seating when single, may be nailed, screwed or otherwise attached to the bars 12, 16, or when double may have its ends connected together by an adjustable tape. Additional braking means 19 may be provided. A canopy 24 may be provided and its supporting arm 31 may be adjustably secured either at points 32 in the arms 2, or at points 33 in the bars 9.
Patent GB-548800-A (GB)
Title: Production of anhydrous magnesium chloride
IPC: C01F5/32
Filed: 1941-03-12
Abstract: 548,800. Production of anhydrous magnesium chloride. SCIENTIFIC & INDUSTRIAL RESEARCH, HONORARY ADVISORY COUNCIL FOR. March 12, 1941, No. 3390. Convention date, April 3, 1940. Drawings to Specification. [Class 1, (iii)]. In manufacturing anhydrous magnesium chloride by the method which comprises passing chlorine through a heated mass of carbon and magnesium oxide particles, the particles of the latter are arranged to be of an " apparent " density of not more than 2.5 and diameter not less than substantially 1.0 millimeter.. The "apparent" particle density is defined as W where W is weight of the discrete V 1  + V 2  particles in grams V<SP>1</SP> is the volume occupied by the solids in the particles and V, the volume occupied by the pores in the particles in cc. In practice the bulk density is not greater than 85 or less than 50 pounds per cubic foot, while the " apparent " density may be up to 2.5 and preferably not less than 1.5. The particle diameter is normally from 1 to 5 millimetres. The reaction may be carried on at a temperature of 800-1000‹ C. in a furnace and the reactive mass may rest on a porous bed of coke, the chlorine passing upwards and molten magnesium chloride being withdrawn at the bottom.
Patent GB-1517133-A (GB)
Title: Mobile infrared apparatus for mapping thermal variations and method employing same
IPC: H04N5/33
Filed: 1977-01-27
Abstract: 1517133 Heat loss determination system DAEDALUS ENTERPRISES Inc 27 Jan 1977 03404/77 Heading G1A [Also in Division H4] Heat loss from buildings 14 or other groundlocated structures is detected by scanning along vertical scan lines 16 using a thermal sensor 18 and associated scanning apparatus mounted on a wheeled vehicle 10. The resulting video signal is corrected for distortions caused by roll of the vehicle by a gyro stabilization device before before being recorded on magnetic tape. The recorded signal may be played back and displayed on a colour monitor the screen of which may be photographed. The infrared scanning and detection system 18, which for example includes a scanning mirror, may be transferred from an aircraft to the vehicle after an aerial scan of the scene has been effected. Regions of high heat loss in the buildings &c. so detected may be physically examined and repaired.
Patent GB-1248560-A (GB)
Title: Improvements in or relating to pilot signal control systems
IPC: H04B3/10
Filed: 1968-09-18
Abstract: 1,248,560. Automatic volume control. SIEMENS A.G. 18 Sept., 1968 [16 Aug., 1968], No. 3410/71. Divided out of 1,247,173. Heading H4R. In a pilot-controlled automatic gain gaincontrol system for a carrier transmission system in which deviations of the pilot level from a reference value control the charging of a capacitor the potential across which controls the gain of an amplifier in the transmission path, a relay contact is arranged in the charge discharge circuit of the capacitor to interrupt the charge or discharge when the pilot level moves out of a permissible range. Deviations are detected by the circuit of Fig. 2 in which the rectified pilot voltage is applied, via resistor 37, to the base of normally conductive transistor 10 in series with a second normally conductive transistor 32. If the pilot drops below a predetermined level transistor 10 is cut off, cutting off transistor 33 which releases relay A having a contact (a3) in the charge discharge circuit of the capacitor (C) in the a.g.c. system (Fig. 1, not shown). As described, the potential on the capacitor is applied to the gate of a f.e.t. controlling the gain of the system amplifier (2). In an alternative arrangement, Fig. 3 (not shown) a further transistor is controlled by the potential at the collector of transistor 33 to control a relay giving a local alarm at failure of the pilot signal. A remote alarm may be operated by a contact on the relay A to give an alarm on deviation of the pilot level or failure of the power supply, which also causes the relay A to be released.
Patent GB-211332-A (GB)
Title: Improvements in or relating to non-slipping horseshoes
IPC: A01L7/02
Filed: 1923-02-06
Abstract: 211.332. Bonson, W. Feb. 6, 1923. Renewable treads; bending, slotting to facilitate.-In a horseshoe made from a straight piece of metal containing a groove 3 with holes 5 for the nails and another groove 4 to receive a strip of non-slip material 6 softer than the shoe, the wall of the groove on the inside curve of the shoe is formed with transverse serrations, notches, or the like 7 to prevent distortion during the bending of the bar.
Patent GB-555838-A (GB)
Title: Improvements connected with the operation and control of a.c. commutator motors
IPC: H02K27/12
Filed: 1942-03-17
Abstract: 555,838. A.C. commutator machines. SCHWARZ, B. March 17, 1942, No. 3513. Drawings to Specification. [Class 35] [Also in Group XXXVII] A stator fed A.C. commutator motor operates on a shunt or series characteristic alternatively. The secondary of an induction regulator is connected in the commutator circuit and the primary of the regulator is connected alternatively to the supply line and in series with the stator winding of the motor. A double induction regulator may be used for shunt operation and adapted for use as a single induction regulator in series operation as in Specification 518,124. A single induction regulator may be used with brush shifting means on the commutator, shunt characteristic operation being obtained as in Specification 549,536. The change-over from shunt to series operation is obtained by suitable switching means and may be controlled automatically in dependence on the setting of the induction regulator, namely in a position such ihat the motor speed for a given torque is approximately the same in shunt and series connection. In a crane drive both shunt and series connection may be used in hoisting according to speed and load, shunt characteristic operation only being used for lowering. The commutator motor may act as a D.C. machine for braking or low speed lowering, excitation being obtained from a D.C. source or a rectifier, and with a resistance in diverter connection for example. Compensating windings on the stator not being required in series operation are disconnected.
Patent GB-1452551-A (GB)
Title: Smooth grooves for information storing discs
IPC: G11B9/10
Filed: 1974-01-25
Abstract: 1452551 Preparing disc record RCA CORPORATION 25 Jan 1974 [29 Jan 1973] 03568/74 Heading G5R In a method of preparing a master record for recording video information which is subsequently used in a process for making vinyl records for capacitive play back as described in Specification 1392202, a nickel negative replica of the unmodulated grooves formed in a lacquer layer on an aluminium blank, which has in its valleys the irregularities formed in the land between grooves of the lacquer layer, is rotated whilst an excess of fluid material of predetermined viscosity is applied to  the grooved surface whereby, after the excess is thrown off by the rotation and the remaining coating has dried, a grooved surface with irregularities in the valleys smoothed over its formed which is suitable for topographic recording of video information. The fluid material is the electron beam sensitive, photo-resist, material referred to in the above Specification which is subsequently exposed in the grooves to a video signal modulated beam from a scanning electron microscope. Using this method the step of forming a second nickel positive replica from the nickel negative replica before application of the electron beam sensitive material, as described in the above Specification is avoided.
Patent GB-285407-A (GB)
Title: Improvements in lattice work for aircraft and light metal construction
IPC: B64C1/06
Filed: 1928-02-06
Abstract: 285,407. Luftschiffbau Zeppelin Ges., and D³rr, L. Feb. 15, 1927, [Convention date]. Framework.-In framework for aircraft or other light metal construction comprising longitudinal spars spaced apart by crossed struts, the ends of the struts are bifurcated in order to provide a more uniform distribution of stresses in the spars. In the form shown in Fig. 1, each strut b has bifurcated ends c, c<1>. Each strut may comprise a single member, or the bifurcations may be formed by rivetting additional members to the ends of an ordinary strut. In the modified form shown in Fig. 3, an equivalent arrangement is obtained by arranging each strut b so that it crosses two others, the struts being connected together at their points of intersection.
Patent GB-176989-A (GB)
Title: An improved attachment for chairs
IPC: A47C7/68
Filed: 1921-01-31
Abstract: 176,989. Crockatt, W. C. Jan. 31, 1921. Invalids' tables; book &c. rests.-A table or guard for attachment to the arms 7 of a deck or other chair comprises a board 10 to which is hinged a flap 11 as a book rest &c., when supported by the engagement of struts 13 with notches 15. To the underside of the table 10 are attached two pairs of lugs 12 which fit over the arms 7 and are secured thereto by pinching- screws 16. One pair of lugs is adjustable to adapt the table to chairs of different widths. The table is also supported by means of extensible struts 22 pivoted to brackets 21 and having V. shaped notches 23 at the lower end.
Patent GB-925875-A (GB)
Title: Improvements in or relating to tubular heat-exchangers
Inventor: PARRIS CYRIL WRIGHT
IPC: B21C37/24
Filed: 1959-02-03
Abstract: 925,875. Tubular heat-exchange elements. E. GREEN & SON Ltd. Jan. 26, 1960 [Feb. 3, 1959], No. 3813/59. Class 64 (3). Gills (ribs or fins) are made in halves 3 each extending half way round a heat exchanger tube 1, the half-gills 4 on one side of the tube being closely spaced while the half-gills 5 on the other side are widely spaced. This allows the tube 1 to be bent or coiled, e.g. into a helix, without crowding of the half-gills 5 on the inside of the bend or coil. The whole gills may be circular, square or oblong as shown and they are secured to the tube 1 by resistance welding. The half-gills 5 on the inside of a curve may be shorter than the outside ones.